Apparatus for reproducing a record



Oct.. 1 9, 1937. s. E.-ADA|R ET Al.

APPARATUS FOR REPRODUCING ARECORD original Filed March 27, 193s 2sheets-sheet 1" attorneys Oct. 19, 1937. s. E. ADAIR -Er An. 2,096,019

-APPARATUS FOR REPRODUCINGa A RECORD Original Filed March 2'7, 1933v 2Sheets-Sheet 2 Gttornegs Patented oa. 19, 1931 j 2,096,019 Arran/TuercaaEPnoDUclNG A RECORD *Samuel E. Adair, Chicago, Ill., and John ElliottJenkins, deceased, late of Chicago, Ill., by Alexandra Jenkins,administratrix, Chicago, lll., as- A signors, by mesne assignments, toJenkins & Adair, Inc., Chicago, Ill., a corporation o! Illinois Originalapplication March 27, 1933, Serial No.

662,860. Divided and this application February 21, 1936, Serial N0.65,128

9 claims. J (cl. 274-1) rIfhis invention relates in general to a recordfrom which sounds or other sensory effects may be reproduced and adaptedto control operative devices in conjunction with sounds or other 5sensory eiects artically reproduced from the record.

The present application comprisesA a division of our co-pendingapplication 662,860, filed March 27, 1933 which in turn comprises acontinuation l in part of the application Serial No, 641,842, ledNovember 9, 1932 and issued as Patent Number 1,909,765 granted May 16,1933.

An object'of `the invention is to provide a record having means tocontrol the operation of any 15 device in conjunction with thereproducing of a predetermined sound sequence or otherfsensory effectfrom therecord, the operation of the device being controlled from suchrecord.

Another object resides in providing means in- 20 cluding a sound recordfor reproducing a sound sequence and for actuating an operable devicefrom impulses in the sound record itself during the reproduction of thesequence and without interrupting or modifying the same. 25 Anotherobject is to superimpose operating fre, quency vibrations at intervalsin a sound or similar record whereby to operate a tuned relay, or otherdevice sensitive to the operating frequency, at one or more intervals asthe sound record is e 30 reproduced, in order to operate, through `theagency of the relay, any mechanical or electrical device in'timedrelationship with the sound sequence or other sensory effects asreproduced from the record of the sound..

Another object is to produce a'record or sound track from which sound orother sensory eifects may be reproduced and from which track orrecord-operating devices may be controlled to operate in timed relationwith the reproduced sen- 40 sory effects. v

Another object resides in the method of reproducing sound'or othersensory effects from a record or other sound source while controllingthe operation of operable devices in timed rela- 45 tion and inconjunction with the sensory effects as the same are reproduced. y

Another object resides in providing a record adapted for use inautomatic lecturing .and demonstrating equipment whereby a lecture maybe 50 reproduced from a sound track or record, which also vcontrols theoperation of the 'device being operated or demonstrated in conjunctionwith the lecture, such equipment being especially well adapted foroperating mechanical displays, such 55 as may be arranged in shopwindows, or any other convenient displaylocation in conjunction with jthe loudspeaker which broadcasts a sound sequence which may comprise anoral description of the device or devices being operated, or music, orboth speech and instrumental music as a pleasing background.

Another object is to provide a record adapted in an automaticallyoperating apparatus for con-l trolling the volume or pitch ofsounds ornoises produced in timed-relationship .with displayed picture sequencesor other visual effects as in the operation of the so-called talkingmoving`pictures, the apparatus also being. adaptable for the control ofany operable device operated in con-` junction with the displayedpicture sequence or to operate warning signals for any purpose duringthe progress of, the picture sequence, such, for example, as to operatewarning lights in the managers oflice, or'in the box office, or at.other stations in the theatre in order to advise the staff of thetheatre of the progress of the picture sequence being shown.

Another object of the invention resides in providing a record for usewith talking moving picture apparatus for reproducing a sound sequencefrom' the record or sound track, including means for controlling thereproduced sounds and for actuating separate operating devices forcontrolling the theatre lights or signaling to various stations in thetheatre as the sound sequence progresses, said means being actuated fromthe sound record or track itself.

Another object ofthe invention resides in providing a record for use inan apparatus for reproducing a sound sequence from the record or track,said` record including means for controlling the volume or pitch of thereproducedV sound and means for actuating separate devices Voperable inconjunction with the reproduction of the sound effect, said device beingactuated from the sound track without being affected by the 'volume orpitch control.

Another object is to provide amethod of and apparatus for producing arecord or sound track from which a sound'sequence' or other sequence ofsensory effects, may be reproduced, and 'from which record or trackoperable devices may be actuated or controlled in timed relationshipwith the effects reproduced from the track or record.

Another object. is to provide a record -having a sound track includingvibrations of a predetermined character to alctuate operable devicesother than the phonograph device with which the record may be used toreproduce the sound.

Other objects of the invention reside in the adaptations of the broadprinciples of the invention to the various types of specific deviceshereinafter disclosed.

Another object resides in providing. automatic means operated by therecord itself for turning the mechanism to a predetermined set position,such as an initial or starting position.

Another object resides in providing, in conjunction with a record ofsound or othersensory effect, means operated by the record itself forcontrolling a selector switch or other progressively operating device,while the effect is being reproduced from the record by means ofoperating vibrations impressed on the record itself and for returningthe switch automatically to a predetermined position, such as an initialor starting position, at a predetermined moment during the playing ofthe record, such as the moment when the record ends.-

Another object resides in using a record of sound or other sensoryeffect having operating frequency components imposed on the record inconjunction with apparatus for reproducing the effect from the recordand apparatus for advancing a selector switch, or other progressivelyoperating device, in response to the frequency components wherein theselector switch is set to a predetermined position automatically at thecompletion of the reproduction of the record.

Another object is to provide a record having a sound track includingvibrations of several distinct characters to actuate operable devicesand to reset the same to a desired position or condition.

Numerous other objects and advantages of the invention will beappreciated as the same is more fully understood from the followingdescription, which, taken with the accompanying drawings, discloses apreferred embodiment of and for the purpose of disclosing the invention.

Referring to the drawings: y

Figure 1 is a diagrammatic representation of a record and recordreproducing system embodying the invention, said system being actuatedfrom a grooved sound track or record by means of a mechanical pick-updevice:

Figure 2 is a diagrammatic representation of a photo-electricpickup,device, which may be substituted for the mechanical pick-up inthe sys'- tem shown in Figure 1 for use with a photographic record;

Figure 3 is an enlarged diagrammatic representation of one form-of soundrecord or track having an operating frequency superimposed thereon' inaccordance'with the present invention;

-Figure 4 is a diagrammatic representation of apparatus for making alrecord for use in practicing the invention;

Figure 5'is a diagrammatic representation of a record reproducing systemembodying the invention vin which the operating components of the recordare used to progressively operate a selector switch and wherein theselector switch is automatically returned to an initial or startingposition when the system is conditioned to commence reproduction of therecord;

ries of operating components which cause the selector switch to beturned to a desired position from any other switch position;

Figure '7 shows a system similar to those of Figures 5 and 6 in which asingle operating component on the record causes the selector switch tomove to a desired position from any other switch position;

-Fgure- 8 is a side View of the selector switch shown diagrammaticallyin Figures 5, 6 and 7;

Figure 9 is a perspective View showing a magnetic record which may beused in conjunction with a suitable magnetic pick-up for impressing therecorded vibrations upon a sound reproducing and device actuating systemin accordance with the present invention; and

Figure 10 shows a modified arrangement of a part of the systemillustrated in Figure 1.

To illustrate the invention, there is shown on Athe drawings, in Figure1, an electrical system for reproducing sound and, at the same time,controlling operable devices, such as a tuned relay 2|, from a recordrepresented generally at II, through a pick-up device I5. The soundrecord II may be made in any suitable or convenient manner known to theart and maybe of any suitable form, that is to say, may be a grooveformed in a` cylinder or disk, las shown in Figure 41; may be aphotographic record on fllm, as shown in Figure 2; or may be a magneticrecord formed, as for instance, in an iron wire as shown in Figure 9.

As shown in Figure 3 the record II consists of a single recorded trackincorporating both a normal sound recording I2, which, for simplicity,shall be called the sound track, and a deviceoperating recording I3,which shall be called the operating component; that is to say, thenormal sound track is combined with the operating component so that therecord II consists, in part, of recorded vibrations I4, comprising theresultant of the sound track I2, and the operating component I3.

The operating component I3 may have a sinusoidal wave form as shown inFigure 3, or may be of more complicated configuration. The wave may be asimple wave or may be the envelope of an oscillation of higherfrequency. The wave may have uniform frequency or may be a coded seriesof vibrations, in which case, the relay 2| is a coded relay adjusted toreact only to the particular coded component in response to which it isdesired to have the relay react. g v

The operating component moreover need not necessarily be artificallyapplied to the record, or the original sound, but may be a pre-selectedcomponent of the sound sequence itself, the relay 2I being adjustedtore-act to the particular selected component, as for instance, inorchestral music, the relay may be set to operate in response to aparticular note of -a particular instrument.

'I'he recordi'll, if the operating component is applied theretoartificially, may be prepared in any suitable manner as by'connecting,with a suitable recording apparatus I 4 I, a suitable device |43 fordelivering to the recordingy apparatus the operating component at theproper' time so that the same may be superposed upon the soundvibrations as they are recorded, the sound vibrations being fed into thesound recording device by any suitable pick-up, such as a microphone|45, if the record is made from the original sound, or a pick-up device|46, where the record II is made from a previously recorded sound`track, or a microphone and pick-up may be used together if aoeaoiedesired as where previously recorded incidental music is to be fdubbedas a background in the ator whenever it is desired to impress theoperating component upon the sound recording. This is known as dubbingthe operating component on the sound track.

Alternatively, a device |48 is capable of creating vibra'tions in theair, may be positioned near the sound pick-up |45 of the recordingdevice |4|, the vibration device being actuated at photographic records.

intervals to add the desired operating component tcpthe sound wavesreaching the pick-up device.

Numerous other methods of superposing the operating frequency uponthesound track in the record fwill suggest themselves to those familiarwith the art of recording sound waves and the invention is notnecessarily limited to any particular mode of producing the compositerecord It is, however, preferable to prepare the composite record by-dubbing the operating frequency upon the sound track, rather than byadding the same to the sound waves before they are applied to thepick-up |45.

The foregoing methods Vmay be employed in making record grooves in waxor similar material, and in making magnetized wire records and It isalso contemplated making magnetized wire and photographic records byfirst applying the actuating component Aupon the recorded sound track.In case of the magnetic record, this may be accomplished by magnetizingthewire at the proper places in accordance with the desiredoperatingcomponent, the wire being either previously or subsequently treated tomagnetize it in accordance with the V sound track recording. l

In photographic records, the operating component may be photographed onthe undeveloped' negative on which the sound track record issubsequently or has previously been photographed, and the doubleexposure developed on the negative from which a positive print of thecomposite recording can be made, or a negative of a normal soundtrack-record may be printed as a. positive andthe print of a separatenegative of the operating component superimposed on the positive printofthe sound sequence and the double exposure developed on lthe positive.

The sound-reproducing and device-actuating system consists of a suitablepick-up device |5 adapted to be vibrated in accordance with thevibrations recorded on the record a sound-emitting device or loudspeaker |9 connected to the pick-up preferably through the amplifyingsystem |1, and a tuned relay 2| adapted to be actulated by the operatingcomponent of the record and also connected with a pick-up device througha relay operating system 23 and filter 25.

The pick-up device I5, as shown in Figure 1 of the drawings, may consistof an ordinary magnetic device, such as'is `commonly used in conjunctionwith the ordinary groovedV phonograph record, or, an ordinary mechanicalphonograph pick-up may be used in conjunction -with a microphone toimpress the vibrations of the record uponthe input of theamplifyingsystem |1.

In Figure 2 of the drawings, the sound track is shown as a photographicrecord, such as is commonly used in the audible moving picture art andthe pick-up device includes the light source 29, the aperture 3| andatarget 33, comprising a'photo-elec'triccell, or other'light-sensitivedevice, connected to the input of the reproducing. system andupon'whichlight rays from 'the light source impinge after passingthrough the aperture and the photographic record |I,"as is Well known inthe art.

The invention does not necessarily reside in the particular form ofrecord and co-operating pickup device employed by any suitable orconvenient form or forms of record and cooperating pick-up device may beused to apply the vibrations of the record upon the sound reproducingand deviceactuating system. z

Similarly, the amplifying system I1 may. be of any suitable orconvenient form or arrangement for the purpose of receiving thevibrations initiated therein by the pick-up device of whatever characterused, amplifying Vthe vibrations and delivering the amplified vibrationsto the sound-emitting speaker I9 and to the relay2l. In some cases, itmay be possible to omit Ythe amplifying system, entirely, but ordinarilysome form of amplification is desirable. y

To illustrate the invention, therefore, there has been shown anamplifying system comprising a transformer 35, the primaryl winding 31of which is provided for connection with' the pick-up and thus forms theinput of .the system andthe secn ondary winding 39 of which is connectedthrough a variable resistancevolume control arranged as a potentiometer4| to a vacuum tube 43, the grid 45 of which is connected with theshiftable member-of the potentiometer 4|, the plate 41 of the vacuumtube 43 being Ivconnected to one end of the primary winding 49,` of atransformer 5|, the other end of the primary winding being connectedthrough a condenser 53, to one side of the filament 55 of the vacuumtube, said side of the filament being also connected through 'the lgridbias means,preferably an electric battery 51,

with the potentiomter 4|. Thelament 55 may be heated in any convenientmanner as is well known in the art and terminals 59 and 60 are providedfor supplying the plate potential. One

end of the secondary winding 53 of the trans-` former 5| is connectedwith the grid 65 of a vacuum tube 51, the plate 69 of which is connectedto one end.of the primary winding 1| of a transformer 13, the secondarywinding 15 of whichl comprises the output of the amplifying. system I1.The lament11 of the vacuum valve 61 may be heated in any suitable orconvenient manner and one side of the filament is connected through thegrid bias means, preferably an electric bat-` tery 19, with thesecondary winding 53 of the.

transformer 5|, the same side of the lament 11 being connected throughthe condenser 8| withthe primary winding I1| of thev transformer 13.

Terminals 83 and 85 are provided for supplying the plate potential. k

, The speaker I9 is connected byA means of suitable conductors 89 to thewinding 15, the re.- lay 2| being connected, through the relay-operatingsystem 23 and the filter 25, to the winding 31.

The ilter 25 comprises inductance,` coils 9| and condensers 93 and formsa filter tuned to the frequency Vof the operating component of therecord V| so as to pass the operating component freelyfwhilekattentuating and suppressing other frequencies.

The input of the filter may be connected with' the'output winding 15 ofthel amplifying system |1, or may, as shown,vbe connected to thesecondary 92 of a transformer 94, the primary 98 of which forms a partof the .primary circuit of the transformer 35. This has the advantagethat the relay is not subjected to the volume control 4| of theamplifier as is the case where the relay is actuated from the output ofthe amplifier Il. The output of the filter 25 is connected to the inputof the relay-operating system 23 which comprises means to` amplify theoperating component and includes a transformer 95, the primary 91 ofwhich forms the input of the system and the secondary 99 of which isconnectedv at one end to the grid |0| of a vacuum tube |03l and theother end of which is connected through a grid-biasing. means,preferably an electrical battery |05, with one side of the lament |01.The filament |01 may be heated by any suitable or convenient means wellknown in the artA and terminals ||5 and ||1 are provided for applyingthe plate potential between the plate and filament.

'I'he coil I9 of the tuned relay is connected across the output of theamplifier 23. The relay 2| is adapted for operation by alternatingcurrents delivered to the coil, the function of the relay-operatingsystem. 23 being to amplify the po'wer of the relay-operating componentsufciently to operate the relay, which may require for its operationmore power than is delivered to the operating system. In some cases, itmay be satisfactory to eliminate the system 23 and v0perate the relaydirectly from the pick-'up or from the output of the system The relay,when l actuated by the operating component, operates the shiftablemember |09, which may be mechanically connected to control a device tobe operated, or, as illustrated, may be arranged to operate anelectrlcalswitch for controlling the circuit ||0,` which, in turn, maybe connected to effect the electrical control of any device to beoperated.

While in some cases it not be necessary i tc utilize the amplifier 23and the filter 25, since it is possible to operate the relay 2 I'directly from the output of the amplifier system Il, it is, however,desirable to provide these' refinements -in order to insurepositiveoperation of the `relay in response to the operating component on therecord. v

Any desired number of relays 2|'may be connected in parallel andactuated from the out-- spond. Such band pass filters may be ofconstruction similar to the filter 25.

If each relay is connected to the -bus connecters through theintermediary of a filter, each lter may be selected or adjusted to passa particular frequency. so that by forming operating'components I3 atdifferent frequencies in the record, the several relays so connected maybe caused to operate selectively. The arrangement will be more fullydiscussed in connection with Figure 7. Moreover, if. the relay isconnected through a -lter 25 and an amplifier 23,-the relay itself needto obtain selective operation of the relays, the

filter, which is preferably used in the combination, being a low-passfilter to pass all frequencies within the tuned range of the relays.

If. the operating component has a frequency within the range of audiblefrequencies, the speaker or sound-emitting device I9 will, of course,respond to the audible frequency of the operating component whenever thesame is impressed upon the system by the pick-up device.

It is possible to utilize a speaker I9, which will react only to acertain band of frequencies within the audible range and for allordinary purposes, it is quite practical to use a speaker operating inthe audible range of frequenciesv above 80 cycles and below 5,000 cyclessince a speaker in this range will accurately reproduce all normalspeech and music and it is contemplated using such a band frequencyspeaker and to maintain the operating components at frequencies below 80cycles and above 5,000 cycles, even though frequencies as low as 40cycles and as high as 10,000

ponent as sound may be undesirable where the' sound sequence is beingreproduced for its pleasing effect upon the hearer, it has been providedto eliminate the transmission of any sound by the device I9, which maybecaused by the operating component.

This may be accomplished by causing the re- .i

lays 2| to switchlsuitable flltercircuits into operation in the speakercircuit so as to silence the speaker circuit to the operatingfrequencies only.

It is preferred, however, to filter the operating 'component from thecircuit 89, leading to the speaker, by inserting in the conductors 89,be-

-. tween the output of the amplifying system |1 and the sound-emittingdevice I9, a band-eliminating filter 90, which functions to highlyattenuate the frequencies of the operating components of the record.

In Figures 5, 6 and 7, there are illustrated systems whereby the recordmay be utilized to control a progressively operable device, such as Athe selector switch illustrated in Figure 8, during the progress of thereproduction of the record and whereby the selector switch may beautomatically turned to a predetermined setting from -any switchposition, as for instance, where it may be desired to turn the selectorswitch to an initial or starting position at the'termination of thereproduction of the `record in. order tobe ready for the next time therecord is reproduced or played.

. As shown in Figure 8 of the drawings, the selector switch comprises aframe |5| carrying a rotary element |53 lcomprising a blade 155,. theopposite ends of which are adapted to lextend from the rotary support|53 in diametrically pposite airecti'ons'-y 'rne ends of the blade lssterminate in contact portions |51, |58, adapted when the blade isrotated on the frame to progressively engage the blade contactingportions of a set of terminals |59, which are carried on an insulatedsupport frame |6| mounted on the ma'n frame |5I. The contractor |51engages the terminals |59 in succession during one half turn of theblade |55 while the contacter |58 repeats the terminal-engaging' processduring another half turn'of the blade. Each one of thel terminals |59may be connected to form parts of external control circuits adapted tobe actuated when the blades engage the terminals |59. The'set ofterminals |59 and its co-operating contactors may be multipled to anydesired degree, that is to say, the rotary switch may include aplurality of terminal sets and `co-operating switch blades, sets beingmounted adjacently on the frame I5| and the co-operating blades beingmounted adjacently on the rotary element |53.4

In the embodiment shown in Figures 5, 6 and 7 of thedrawings, asis alsothe case in Figure 1, the pick-up device I5 is connected in series withthe input windings 31 of .the amplifying'system` I1 and 96 of therelay-actuating sys- 4tem which comprises the transformerl 94 and iilter25 and the amplifier 23 so that thesound track I2 4of record |I mayoperate the loud speaker I9 through vthe amplier |1 .while theoperating'components I3 may actuate the relay y2| as previouslydescribed in connection with the system shown in Figure 1.

In Figures 5, V6 and 7 also'the rotary selector switch is showndiagrammatically and we haveA illustrated, in each case, two sets ofterminals |59 and terminal engaging blades |55, but lit should beunderstood that any desired number of terminal sets may be used in orderto multiply the control circuits actuated by the rotary switch.v Therotary switch also includes a relay having a solenoid |63 `mounted onthe frame |5| and an armature |65 tiltably mounted on the frame adjacentthe solenoid and adapted to be shifted against the base of a spring |61whenever the solenoid |63 is energized.r A switch |69 also is carried onthemain frame of. the rotary switch and vis operatively associated withthe amature |65 so as tobe opened whenever the solenoid is energized.`I'he armature |65 carriesa pawl |1| .extending `to a ratchet wheel |13which is fixed to the rotatable element |532 The pawl I"|,I isnormallyurged` by means vof the spring |15 into engagement with theratchet wheel sothat aslthe armature is tilted Aon thel frame |5| by'thevalternate eiect of the spring |61 and the energized solenoid |63',the'pawl may cooperate with the ratchet ',wheel to pro-l gressivelyrotate the element |53 and thus advance the switch arms |55 intoprogressive contact with the terminals |59. A' detent |16 also ismounted on the frame in position to `co-operate with the ratchet wheelto permit it to be advanced in' one -direction lonly, by the pawl |1I.

- The selector switch illustrated is' a typecommonly usedin telephonecircuits and has -been shown here byway of explanation ratherthan bylimitatiomsince it will be obvious that the invention is not limited toany particular form o'ir switch and,.in i'act, may apply to 'anyprogressively-actuated device.

ated device to be controlled is shown diagrammatically as a rotaryswitch of thel type illustrated in Figure 8 and including at 1east`tw0#The progressively-actul sets |11 and |19 or terminals |59 andco-operating contactors. The terminals |59 of the set |19 are providedwith conductors |8| whereby 1 the same may be connected in .externalcontrol circuits while means is provided to connect the contactors |51and |58 of the set |19 with an external conductor |83 whereby tocomplete the external circuits in the arrangement shown in Figure 5, oneend ofthe coil of the solenoid |63 is connected in series with a4contact switch |85,

the other side of which is connected in series through a source ofelectrical power |81, and thence to .the other end of the solenoid coil.The switch |85 is actuated by a time-delay relay |89, and is closedafter a predetermined timedelay when the solenoid or the relay isenergized.`

The solenoid |89 is arranged in a series circuit including a powersource |9I, and the switch |09 of a system similar to thatshown inFigure 1.

With such an arrangement, the relay switch |09 will close every time anoperating component .I3 energizes the pick-up and therelay |89 willconsequently close the switch |85 and complete a circuit for energizingthe solenoid |63. It is, of

course, possible to dispense with the time-delay relay |89- byconnectin'gthe switch |09 directly in the operatingA circuit of thesolenoid |63 in place of the 'switch |85 but it is preferred to use atime-delay relay'to eliminate operation of the operating circuit whenthe switch |09 is ,closed accidentally for an instant, as sometimeshappens as a result of influences exerted upon the system other than'the definite operating frequencles I3.

As the record is reproduced, the operating components I3 successivelycause the relay 2| to close the switch |09 and the solenoid |89 isenergized to close the switch |85.` When this happens, the solenoid |63will be energized and will actuate the armature |65.and advance thecontactors |51 into engagement with the next succeeding terminal |59 ofboth' sets-|11 and |19.

When the solenoid |63 is energized by the closure y of the Switch |85,the armature |65 in the illustrated embodiment will tilt 'in a clockwisedirection about its pivot point against the tersion -of the springV |61,the'pawl I1| being car-- ried downwardly, As soon as the operatingfrequency ends, the switchesl |09 and |85 open, thus breaking the*solenoid circuit and permitting the spring |61 to draw the armature 'inla counter clockwise'dlrectlon thus raising the pawl and advancing theratchet wheel |13 sufficiently to turn the contacts |55 into engagementwith the next adjacent terminal |59.

The operating system just Adescribed for the- `selector switchv is in.itself novel and when used with the record canl be'utilized to effectthe con- 'trol of the external-operating circuits |8I-|83,

and thus'control any desired series of operations.

After the record has been reproduced, the se- I lector switch, dependingupon the number of op- :v

erating componen-ts I3'contained -in 'the record, will have advanced vtoa position engaging one \of the intermediatecontacts |59 of .the set|19,

' turned to a position in' which the contactor |55- this end theterminals of the set |11 with the exception of the end terminal |60 areconnected in series.

A switch |95 is also provided and this switch is adapted to be closedwhenever the pick-up device is conditioned to commence the reproductionof the record.

In the illustrated embodiment, the record II is in the form of a diskand the pick-up device is carried on an arm 20| swingably supported tomove across the disk record while the switch I95 is operativelyconnected with the arm 20| in such a way that whenever the arm 20| ismoved to raise the pick-up device .from the record, ,the switch |95 willbe closed. 'I'he switch |95 is connected in a series circuit includingthe switch |69, the power source |81, the contacts of the set |11, andthe solenoid |63. The shorted contacts of the set |11 being connected toone end of the solenoid coil |63 and the contactors |51 and |58 beingconnected to the switch |95' which is connected through the switch |69,and

the power source to the other end of the coil |63 so that when the arm20| is raised in order to either reset the device I5 to a position forstarting the reproduction of the record, `or to enable the record to beremoved from its turntable, the switch I 95 will be closed. This willcomplete a circuit through the solenoid |63, and the amature |65 will beactuated to turn the ratchet wheel. Instead of moving only once toadvance the contactor |55 to the next adjacent terminal |59, as in thecase where the switch is operated by the operating frequency I3 in the irecord, the switch ,|95 is held in closed position but the armature, inmoving downwardly, 'under the influence of the spring |61, will permitthe switch |69 to close and re-establish the circuit through thesolenoid |63. Consequently, the armature will again be turned in acounterclockwise direction and will continue to make and break thecircuit at the switch |69 and reciprocate the pawl |1I until the ratchetwheel |13 is of the set I 11 reaches the terminal contact |60 at whichtime, the solenoid circuit will be'broken because the terminal is notconnected in the circuit as are the other terminals of the set |11.

When the contactor |51 engages the isolated terminal |60, the arm |55will be in such a position that the contactors |58 will engage thecontact of the series |11 and |19, which is connected in the controlcircuit to be actuated when the first control frequency, in actuatingthe armature |65, will cause the contact |56 of the set |19 to engagethe rst terminal at 'the\ proper instant.

Obviously the switch |95 does not necessarilyv have to be mounted foroperation by the movement of the arm 20| but .may ,be actuated in anyother suitable way as, for instance, by forming the switch as a .pushbutton for'manual operation in response to the movement of a switchVused to control the driving means, which shifts the record pass thepick-up device I5. It is also possible tov provide for shifting theswitch arm I 55 to any desired position at any time by isolating one ofthe terminals of the set I 11 to thus cause the arm |55 to stop oppositesaid isolated terminal.v Othercontrol circuits for setting the switcharm to a predetermined position will suggest themselves to those skilledin the art whereby, should the switch arm |55 be shifted or held fromshifting in order to synthe rotary switch with the record in order tobring the switch into step, should it for some reason or other get outof step with the record during the playing of the same.

rI'he system illustrated in Figure 6 of the drawings is ,adapted toutilize a plurality of operating frequency impulses in order to set theswitch arm |55 to a desired position. The operating frequency impulsesare formed as a Asuccession of impulses, which are impressed on therecord at the conclusion of the recorded sound frequency or sensoryeifect as indicated at I3' in Figure 6 of the drawings. The switch |85in this system is connected in series with the power source |81, thesolenoid coil |63 and theterminal set |11, all of the terminals of whichset are connected together with the exception of the terminal |62,which, in .the illustrated embodiment, is next adjacent the nal terminalof the set but which, if desired, may be any of the terminals of the setopposite which it is desired to stop the arm |55. A switch |96 is alsoprovided and this switch is adapted to be closed just before thereproductionof the record commences. switch may be arranged forvoperationin 'any suitable or convenient manner andi may be formed as amanually operable push button, or for operation by the starter switchthat controls the mechanism for moving the record past the pick-updevice but it is preferred to form the switch as illustrated so that thesame is closed momentarily when the arm 20| is positioned to engage thepick-up'device I5 with the initial portion of 'the record in commencingthe reproduction' thereof. The switch |96 is connected in series withthe power source |81 and the solenoid |63, As the record is reproduced,this solenoid I63.will be periodically actuated by the operatingfrequencies I3 of the record, the actuation taking placey through thesystem including the transformer 94, the lter 25, the amplifier 23 andthe tuned 'relay 2| and the timedelay relay |69. Consequently, theswitch arm |55 will be progressively advanced and atv the conclusion ofthe record will occupy a position oppositev one of the intermediateterminals |59. At the end of the record, the series of operatingfrequencies I3 will cause the switch to be rapidly advanced, there beingenough impulses to ensure that the arm' |55 is carried into positionopposite the free terminal |62, at which point movement of the arm inresponse to the energization of the relaying will stop because theterminal |62 is. not connected in the circuit including the switch |65closed by said relay. 'I'he switch arm will remain in such positionuntil y the switch v|96 isclosed, at which instance, the

the solenoid |63 is energized by the rst operat- I ing frequency |3 ofthe record, it will be moved into engagement with the terminal |59 thatis connected to the rst of the external circuits |8| to be actuated. Itwill be noted that the succession of operating frequencies I3 isutilized vto move the arm |55\to a position just short of the initialposition after which the switch |96 is actuatedto bring the switch arminto the initial position. In Figure 5, on the contrary, the actuationof the switch |95 is utilized to bring the switch arm |55 directly tothe initial position. J f

In Figure 7 of the drawings, there has been illustrateda system where asingle operating frequency,..at the termination of the record, is usedin place of the series of impulses I3 to turn that employed in theoperating frequencies |3.

In the system shown in Figure '7, the contacts |59 of the series |11are, with the exception of the initial and final terminals |60,connected together and the so-connected terminals are connected in aseries circuit including the switch |69, aswitch 203, .the power source|81', and the coil |63, the interconnected terminals being connected toone contact of the switch |69, the other contact of the switch beingvconnected to 'one terminal of the switch 203, the other terminal ofsaid switch being connected to the power source |81, the other side ofthe power source being connected to one end of the coil |63, the otherend of which is connected to the'contactors of the terminal set |11. Thecoil |63 and power source |81 are also connected in series with theswitch |85 so that the switch |85 operates in parallel with the switch203 and the inter-connected contacts of the set |11 upon the coil |63and the power source |81 so that'either closure of the switch |85, orclosure of the switch 203 with one of the contactors |51, |58 engagingone of the inter-connected terminals, will energize the coil |63. 'I'heswitch 203 is of the toggle type, that is to say, is provided withyielding means 205 which operate to hold the switch in either open orclosed position. The switch |85, however, is normally urged by Vmeans ofthe spring |86 toward open position so that the"swi tch is opened by thespring |86 except when the relay coil |89 is energized. Interlockingmeans 201 is also preferably provided between the switches 203 and |85so that, when the switch |85 closes, the switch 203 will be opened. Theswitch 203'may be closed by means of the solenoid 209 which may beconnected directly to the output of the ampliiying syst'em 23 or maybeconnected to the output of the system through an'intermediate relaysimilar to the relay 2| andpower source similar 4tothe power source |9|employed in connecting the relay I89 to the output of the amplifyingsystem 23. The relay |89 is connected in series with a power source |9|anda switch |09, which switch is operated by the coil I|9 of the relay2|, said coil I|9 being 4connected to the output of the amplifyingsystem 23. 'I'his system is adapted for turning the switch arm |55 to apredetermined setting' vsuch as the initial or starting position when .a

single operating frequency I3" occurs in the record, said operating"frequency I3" having a different wave characteristic or frequency fromthat of the operating frequencies I3.l The relay 209 is responsive onlyto the operating frequency I3" While the relay |89, through relay 2|,-isresponsive only to the operating frequencies I3.l Consequently, as therecord moves past the piclt-l updevice I5, the relay coil |89 will beenergized` v each time'the pick-up device encounters one of theoperating frequencies I3, the coil |09 remaining inactive.

It will be noted that should lthe switch 203 be closed, when theirstoperating frequency I3 energizesthe relay I 89, the closure of theswitch -will open the switch 203. Each time the solenoid |83 isyenergized by the-closure of the switch |85 in response to an operatingfrequency I3, the pawl |1| Willadvance the ratchet |13 at a distancesuiiicient to move the contacts |51 fromterminal |59 to the nextadjacent terminal |59. 'Thus as the record progresses, the variouscircuits r |8| will be actuated successively. At the concluv sion of therecord, the arm |55 will have advanced to a position intermediate theend positions.

The final or switch-setting frequency I3" will' will remain'closed untilopened by the actuation` of the relay |89 in response to a lateroperating frequency |3. As the switch 203 closes with the contactors |51engaging one of the interconnected terminals |59 of the set |11, thecoil |63 will be energized to turn the ratchet wheel |13. As thearmature |65 moves to accomplish this, the switch |69 is caused to openand break the circuit, deenergizing the coil |63 and permitting thearmature |65 to return to its normal position under the iniluence of thespring |61, thus reclosing the switch |69 and again energizing the relays o that as long as the switch 203 remains closed and the contactar |51engages one of the intermediate terminals |59 of the set |11, the arm|55 will coniinue to advance. As soon as the contactor |51 reaches theisolated contact |60 of the terminal set |11, the circuit, includingtheswitchl 203 and,

the switch |69 will be opened and thel coil cannot thereafter beenergized through said circuit to advance the switch arm |55. It will benoted that by simply isolating the terminal |59 of the set |11 at thedesired stopping point. As the recordv continues to play, or if therecord is repeated, the

Obviously the switch` rst operating component I3 to engage the pickupdevice will energize the coil |89, will open the switch 203 rand willadvance the switch arm |55 into position engaging the contactor |58 withthe first terminal |59 next adjacent to the isolated terminal |60.

As an alternative arrangement, the switch203 may be formed simply as anormally open switch similar to the switch |85 instead of as a togglevswitch as shown, and the interconnecting arm 201 omitted. With such anarrangement, the devicesetting recording I3 may be extended' so that thecoded frequency initiated in the relay 209, when the pick-up device I5engages the recording I3", will be continued for an appreciable periodvand will hold the switch 203 in closed position maintainingl the switchcircuit in operation long enough to permit the contactor arm- |55 to beadvanced to the desired position.

It should be understood that the relay parts |63, |65, and I69'operateextremely rapidly when the switch 203 is closed to turn the arm |55 sothat the resetting impulse initiated in the system by thedevice-resetting recording I3" is not necessarily unduly prolonged, infact,l the effect produced by the recording I3" on the pickup in themodiiied arrangement need only prevail for a few seconds.

Itis also desired to" direct attention to the possibility of utilizingthe invention in the control of a system incorporating the so-calledtelegraph relays, which respond lto coded vibrations initiated in thesystem, that is to say, each relay may be calibrated to respond only toa` definite sequence ofl relatively long and short impulses, ortorrelatively long .and short gaps between impulses.

Relays of this character may be incorporated in the device-operatingsystem in place of the relay 2| and the device-operating recordings I3formed in the record in such a wayas to provide a coded series ofrelay-operating impulses upon the system so that any desired one of thecalibrated relays will respond to its proper coded impulse initiated bythe coded vibrations on the record.

The present invention has many practical applications. It may beincorporated with a picture-displaydeviceln order to deliver fa lectureor suitable music', and, at the J'same time, cause the picture displayedby the device to change at the proper time during the lecture oraccompanying music. This is accomplished simply by having thepicture-changing mechanism actuated by the relay 2l, that isto say,whenever the operating component occurs in the record Il, the picturewill be changed.

The picture-display device may be of any type, for instance, theordinary automatic stereopticon or slide projector comprising devicesfor presenting a series of slides or pictures in position for display,or may be a still-film projector, that is to say, a device employingcinematograph lm having pictures photographed in the successive framesof the iilm and mechanism for advancing one frame at a time and allowingeach picture frame to remain in display position until thepicture-changing mechanism is again actuated to advance the next frameinto displaying position.

'Ihe'apparatus and method of our invention may also be used in artmuseums to actuate picture-illurninating means in conjunction with thereproduction of a lecture concerning the pictures, which lecture may bedelivered or broadcast from a centrally located loud speaker orspeakers. The pictures being successively illuminated in order to renderthem highly visible as they are described during the progress of thelecture.

The invention may also be utilized to Yeffect a practical automaticdemonstration of any mechanical device requiring demonstration, as, forinstance, in a shop window or elsewhere, in conjunction with th'edelivery of a lecture or explanatory talk, the operation of thedemonstrateddevice being controlled through the relay or relays 2l inorder to occur at the proper time during the course of the lecture.'I'he control of the operation of the device being demonstrated and thelectureA both riginate from the pick-up device I5 or its equivalent.

In the projection of talking-moving pictures, it is frequentlynecessary, in order to obtain dramatic eiects, to dim the lights of thetheatre, to vary the volume of sound emitted by the loud speakers, or tocontrol other effect-producing devices at intervals during the visual orpicture sequence. Such control operations may be accomplishedautomatically, by means of our invention, by impressing upon the soundtrack of the cinematograph illm an operating frequency component atintervals and utilizing this component in accordance with ourinventionvheretofore described in order, by meansof the relays 2|, ortheir equivalent, to actuate a control deviceA for dimming the theatrelights, increasing the amplification of the system through which thesounds are broadcast, or controlling other devices for producing sensoryeffects during the progress of the picture sequence.

In accomplishing the volume control, it is preferable to utilizesuitable switch means for progresslvely increasing or decreasing theampliilcation in order to eiect the control gradually. With this type ofswitch, it? preferred to utilize two tion of the picture. y

I-t is also possible to actuate warning signals and perform othercontrol functions such as the starting of auxiliary projectors atintervals during the progress of the talking picture in response toactuating components impressed directly on the sound track and withoutinterrupting the sound or picture sequence. Suchwarning signals may belocated .in the managerls oiilce, the box ofce, or at other locations inthe theatre in order to advise the manager or the box oflce as to theprogress of the picture being displayed. Operating components impressedon the sound track may also be utilized to warn the operator of theprojection machine at intervals in order thathe may take proper actionto insure the projection of the successive reels at the proper time,that is to say, near the end of the first reel, the sound track may bearranged to give a "make ready warning so that the next reel may bemounted v in a. second machine ready`for projection or may be made readyfor mounting in the same machine if only one is used in the theatre, andan operating component may be used to automatically start the secondmachine in operation at the proper time.

Numerous other useful applications will suggest themselves to thosefamiliar with the practical aspects of the projection of talkingpictures in particular and the operation of devices in conjunctionwiththe reproduction of sound generally.

It is thought that the invention and numerous of its attendantadvantages will be understood from the foregoing description and it isobvious that numerous changes may be made in the form, construction, andarrangement of the several parts without departing from the spirit orscope of our invention, or sacricing any of its attendant advantages,the forms herein described being preferred embodiments for the purposeof illustrating the invention.

What is claimed is:

1. 'I'he combination with a device for reproducing a sensory eiect froma record of the same, of a progressively operable device and meansresponsive to device-operating frequencies recorded in the record forprogressively actuating said device.

2. 'Ihe combination with a device for reproduca sensory eiect from arecord of the same, of a progressively operable device and meansresponsive to device-operating frequencies recorded in the record forprogressively actuating said device, themeans operable in response to adevice-setting impulse recorded in the record for automatically settingthe device to a predetermined setting.

3. 'I'he combination with means for reproducing sensory eifects from arecord, said means including a pick-up device, oi' a record, aprogressively operable switch for progressivelycontrollingexternalcircuits, -and means responsive to operatingfrequenciesmade'e'ective in the pickof a sequence of reproduciblesensory eects and' ing a pick-up device, of a record comprising arecorded track including both a normal recording a device-operatingrecording, a progressively operable device, and means responsive to thedevicei-operating recording in the record made eifective through thepick-up' device for progres-'- sively actuating the operable device.

5. The combination withmeans for reproducing sensory effects from arecord, said means including a pick-up device, of a record and aprogressively operable switch for controlling external circuits, saidrecord comprising a single recorded track incorporating both a normalrecording of a sequence of sensory effects and deviceoperatingrecording, and means responsive to the device-operating recording madeeffective through the pick-up device :for progressively actuating theswitch. j

6. The combination with means for reproducing sound effects from arecord, including a pickup device, ofa record comprising a singlerecorded track including both a normal sound recording of voice ormusic, and a device-operating recording. an operable device, and meansresponf siveto the device-operating recording made effective through thepick-up device for actuating the operable device.

'1. The combination with means for reproducing sensory eiiects from arecord, including a pick-up device, of a progressively operable switchincluding a plurality of terminals adapted to be connectedv in externalcircuits.. a shiftable contactor for progressively engaging theterminals in order to control the external circuits, means including asolenoid responsive to device-operating vibrations recorded in therecord for advancing the contactor, and means controlled by the movementof said contacter for rendering the solenoid inactive to advance thecontactor when it reaches a predetermined position in the switch.

recorded track including both a normal recording or a sequence ofreproducible sensory eiects and a series of device-oper ting recordingssuperposed on said rst reco ng. a progressively operable device, andmeans responsive to the device-'operating recording in the record madeetiective through the pick-up device for progressively actuating theoperable device.`

9. The combination with means for producing sensory effects fromarecord, said means including a pick-up device, of a record comprisingva recorded track including both a normal recording of a sequence ofreproducible sensory effects and a series of device-operating recordingssuperposed on said rst recording, a switching device operable in steps,and means responsive to said deviceoperating recordings effectivethrough said pick-f up device for advancing said switching device onestep foreach of said last recordings.

SAMUEL E.' ALEXANDRA JENKINS, Admnstra'triz of the Estate of JohnElliott Jn kns, Deceased.

